I have to replace the ladder radiator in the bathroom. The pipework will need to be slightly altered as the new one is a fraction bigger.
How do I drain a condensate boiler?
How do I drain a condensate boiler?
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Draining a condensate boiler
- Thread starter DaveBrady
- Start date
Exactly the same as a non condensing one. The "condensate" is collected from the combustion process and discharged to a drain. It is not connected in anyway to the water that circulates in the radiators.
If you want more detailed help, if you post details of your boiler make / model, then someone who is familiar with and has knowledge of it will be able to give you specific information.
If you want more detailed help, if you post details of your boiler make / model, then someone who is familiar with and has knowledge of it will be able to give you specific information.
Thanks for your helpful reply. The boiler is a Potterton Promax SL if that helps.
The answer can be found in the Wiki. Please click here. You will only need to drain off enough water so that the level is below that of the bathroom radiator. So if you have an upstairs bathroom, then no need to empty the downstairs radiators. When refilling add corrosion inhibitor as required.
Your system will most likely be a vented system with a feed and expansion tank in the loft. A sealed system has a pressure vessel instead. A Potterton Promax SL can be installed as either.
Your system will most likely be a vented system with a feed and expansion tank in the loft. A sealed system has a pressure vessel instead. A Potterton Promax SL can be installed as either.
Massive thanks Stem, I will give it a go
Drained the system ok, replaced the radiator, refilled the system and bled all the valves.
Now the boiler itself wont start.
Usually there is a slight trickle of water sound before it bursts into life, but when heat/water is pressed it just clicks and nothing happens.
What have I missed or done wrong? Any ideas ? I have watched every video on the net but have not been able to find any answers.
Now the boiler itself wont start.
Usually there is a slight trickle of water sound before it bursts into life, but when heat/water is pressed it just clicks and nothing happens.
What have I missed or done wrong? Any ideas ? I have watched every video on the net but have not been able to find any answers.
It's probably air in the pipework preventing the boiler flow switch working. If the circulating pump has a silver vent plug in the centre loosen it half a turn with the pump running, use a cloth to prevent water entering anything.
Re-drained and refilled same problem. Deduced it must be the boiler, so took cover off. Black box with 3 lights, 1 solid red (Lockout) and 2 (Boiler & mains) flashing green.
So I'm guessing its a PCB problem.
If I get another one would it be something I could do myself to keep costs down?
So I'm guessing its a PCB problem.
If I get another one would it be something I could do myself to keep costs down?
no flow detected by boiler . The clue is in the fact thatit was O.K before u drained & now it is not
afai recall this is the same boiler as a baxi solo , and the main he , same set up different badge in which case there may well be or will be 325 volts DC
inside that boiler????????
Why?
Why?
Why?
You can't keep costs down buying PCBs.
I would say if you have to ask then no you can't do it yourself and it would be very unwise.
It may not cure the problem anyway.
Sounds to me like some sludge or other has blocked the flow. Have you had the boiler regularly serviced? Do you ensure the inhibitor is in the system? Draining the boiler maybe exposed the problem by moving a chunk of sludge. You need a clean up of your system. Ideally a power flush.
Ps move this post to plumbing and heating forum
Lots of professionals there
Ps move this post to plumbing and heating forum
Lots of professionals there
